Works by Varghese, Hema Tresa

Results: 20

Spectroscopic (FT-IR, FT-Raman), first order hyperpolarizability, NBO analysis, HOMO and LUMO analysis of N-[(4-(trifluoromethyl)phenyl]pyrazine-2-carboxamide by density functional methods.

Published in:

Arabian Journal of Chemistry, 2017, v. 10, p. S2281, doi. 10.1016/j.arabjc.2013.08.004

By:

Joseph, Tomy;
Varghese, Hema Tresa;
Panicker, C. Yohannan;
Viswanathan, K.;
Dolezal, Martin;
Van Alsenoy, Christian

Publication type:

Article

IR, Raman and SERS spectra of 5-sulphosalicylic acid dihydrate.

Published in:

Journal of Raman Spectroscopy, 2007, v. 38, n. 3, p. 309, doi. 10.1002/jrs.1644

By:

Varghese, Hema Tresa;
Panicker, C. Yohannan;
Philip, Daizy

Publication type:

Article

IR, Raman and SERS spectra of 3,5-dinitrosalicylic acid.

Published in:

Journal of Raman Spectroscopy, 2007, v. 38, n. 3, p. 323, doi. 10.1002/jrs.1647

By:

Varghese, Hema Tresa;
Panicker, C. Yohannan;
Philip, Daizy;
Chowdhury, Joydeep;
Ghosh, Manash

Publication type:

Article

Potential-dependent SERS profile of orthanilic acid on silver electrode.

Published in:

Journal of Raman Spectroscopy, 2006, v. 37, n. 11, p. 1265, doi. 10.1002/jrs.1547

By:

Anto, P. L.;
Panicker, C. Yohannan;
Varghese, Hema Tresa;
Philip, Daizy

Publication type:

Article

Potential dependent SERS profile of sulfanilic acid on silver electrode.

Published in:

Journal of Raman Spectroscopy, 2006, v. 37, n. 8, p. 853, doi. 10.1002/jrs.1516

By:

Panicker, C. Yohannan;
Varghese, Hema Tresa;
Anto, P. L.;
Philip, Daizy

Publication type:

Article

Potential dependent SERS profile of sulfanilamide on silver electrode.

Published in:

Journal of Raman Spectroscopy, 2006, v. 37, n. 4, p. 487, doi. 10.1002/jrs.1421

By:

Varghese, Hema Tresa;
Panicker, C. Yohannan;
Anto, P. L.;
Philip, Daizy

Publication type:

Article

Spectroscopic investigations and computational study of sulfur trioxide-pyridine complex.

Published in:

Journal of Raman Spectroscopy, 2011, v. 42, n. 9, p. 1812, doi. 10.1002/jrs.2928

By:

Anto, P. L.;
Anto, Ruby John;
Varghese, Hema Tresa;
Panicker, C. Yohannan;
Philip, Daizy;
Andrade, Gustavo F. S.;
Brolo, Alexandre G.

Publication type:

Article

Concentration and pH dependent SERS spectra of sulfanilic acid sodium salt on colloidal silver particles.

Published in:

Journal of Raman Spectroscopy, 2010, v. 41, n. 9, p. 944, doi. 10.1002/jrs.2524

By:

Panicker, C. Yohannan;
Varghese, Hema Tresa;
Ushakumari, L.;
Mary, Y. Sheena;
Sarkar, Jyotirmoy;
Chowdhury, Joydeep

Publication type:

Article

Vibrational spectroscopic studies and computational study of methyl(2-methyl-4,6-dinitrophenylsulfanyl)ethanoate.

Published in:

Journal of Raman Spectroscopy, 2010, v. 41, n. 7, p. 829, doi. 10.1002/jrs.2509

By:

Panicker, C. Yohannan;
Raj, Asha;
Varghese, Hema Tresa;
Raju, K.;
Sheena Mary, Y.

Publication type:

Article

Spectroscopic investigations and computational study of 2-[acetyl(4-bromophenyl)carbamoyl]-4-chlorophenyl acetate.

Published in:

Journal of Raman Spectroscopy, 2010, v. 41, n. 6, p. 707, doi. 10.1002/jrs.2492

By:

Panicker, C. Yohannan;
Varghese, Hema Tresa;
Mariamma, K. C.;
John, Koshy;
Mathew, Samuel;
Vinsova, Jarmila;
Van Alsenoy, Christian;
Mary, Y. Sheena

Publication type:

Article

FT-IR, FT-Raman, SERS spectra and computational calculations of 4-ethyl- N-(2′-hydroxy-5′-nitrophenyl)benzamide.

Published in:

Journal of Raman Spectroscopy, 2010, v. 41, n. 4, p. 381, doi. 10.1002/jrs.2471

By:

Panicker, C. Yohannan;
Varghese, Hema Tresa;
Ushakumari, L.;
Ertan, Tugba;
Yildiz, Ilkay;
Granadeiro, Carlos M.;
Nogueira, Helena I. S.;
Mary, Y. Shyma

Publication type:

Article

Vibrational spectroscopic studies and ab initio calculations of phenyl phosphate disodium salt.

Published in:

Journal of Raman Spectroscopy, 2010, v. 41, n. 1, p. 113, doi. 10.1002/jrs.2406

By:

Anto, P. L.;
Anto, Ruby John;
Varghese, Hema Tresa;
Panicker, C. Yohannan;
Philip, Daizy

Publication type:

Article

FT-IR, FT-Raman, and computational calculations of 4-chloro-2-(3-chlorophenyl carbamoyl)phenyl acetate.

Published in:

Journal of Raman Spectroscopy, 2009, v. 40, n. 12, p. 2176, doi. 10.1002/jrs.2393

By:

Yohannan Panicker, C.;
Varghese, Hema Tresa;
Madhavan, V. S.;
Mathew, Samuel;
Vinsova, Jarmila;
Van Alsenoy, Christian;
Sheena Mary, Y.;
Shyma Mary, Y.

Publication type:

Article

IR, Raman and SERS spectra of ethyl salicylate.

Published in:

Journal of Raman Spectroscopy, 2009, v. 40, n. 12, p. 2023, doi. 10.1002/jrs.2363

By:

Yohannan Panicker, C.;
Varghese, Hema Tresa;
Ushakumary, L.

Publication type:

Article

FT-IR, FT-Raman and DFT calculations of the salicylanilide derivate 4-chloro-2-(4-bromophenylcarbamoyl)phenyl acetate.

Published in:

Journal of Raman Spectroscopy, 2009, v. 40, n. 9, p. 1211, doi. 10.1002/jrs.2265

By:

Varghese, Hema Tresa;
Panicker, C. Yohannan;
Madhavan, V.S.;
Mathew, Samuel;
Vinsova, Jarmila;
Van Alsenoy, Christian

Publication type:

Article

FT-IR and FT-Raman spectra and ab initio calculations of 3-{[(2-hydroxyphenyl) methylene]amino}-2-phenylquinazolin-4(3H)-one.

Published in:

Journal of Raman Spectroscopy, 2009, v. 40, n. 9, p. 1262, doi. 10.1002/jrs.2276

By:

Yohannan Panicker, C.;
Varghese, Hema Tresa;
Ambujakshan, K.R.;
Mathew, Samuel;
Ganguli, Subarna;
Nanda, Ashis Kumar;
Alsenoy, Christian Van

Publication type:

Article

FT-IR, FT-Raman and DFT calculations of 3-{[(4-fluorophenyl)methylene]amino}-2-phenylquinazolin-4(3H)-one.

Published in:

Journal of Raman Spectroscopy, 2009, v. 40, n. 5, p. 527, doi. 10.1002/jrs.2159

By:

Panicker, C. Yohannan;
Ambujakshan, K. R.;
Varghese, Hema Tresa;
Mathew, Samuel;
Ganguli, Subarna;
Nanda, Ashis Kumar;
Alsenoy, Christian Van

Publication type:

Article

Vibrational spectroscopic studies and DFT calculations of 4-fluoro- N-(2-hydroxy-4-nitrophenyl)benzamide.

Published in:

Journal of Raman Spectroscopy, 2008, v. 39, n. 12, p. 1832, doi. 10.1002/jrs.2047

By:

Ushakumari, L.;
Varghese, Hema Tresa;
Panicker, C. Yohannan;
Ertan, Tugba;
Yildiz, Ilkay

Publication type:

Article

Spectroscopic studies and Hartree-Fock ab initio calculations of a substituted amide of pyrazine-2-carboxylic acid - C16 H18 ClN3 O.

Published in:

Turkish Journal of Chemistry, 2009, v. 33, n. 5, p. 633, doi. 10.3906/kim-0808-14

By:

Panicker, Chacko Yohannan;
Varghese, Hema Tresa;
Thansan, Thaha

Publication type:

Article

Vibrational Spectroscopic Study of (E)-4-(Benzylideneamino)-N-Carbamimidoyl Benzenesulfonamide.

Published in:

ISRN Analytical Chemistry, 2012, v. 2012, p. 1, doi. 10.5402/2012/397026

By:

Chandran, Asha;
Mary, Sheena;
Varghese, Hema Tresa;
Yohannan Panicker, C.;
Manojkumar, T. K.;
Alsenoy, Christian Van;
Rajendran, G.

Publication type:

Article